Carbureter.



A. WINTON & H. B. ANDERSON.

v GARBURETER.

APPLICATION FILED MAR. a, 1907.

Patented Dec. 15, 1908.

- 20/0 (Era Wit" uses UNITED STATES PATENT OFFICE.

ALEXANDER WINTON AND HAROLD ANDERSON, CF CLEVELAND OHIO ASSIGNORS THEWINTON MOTOR CARRIAGE COMPANY, OF CLEVELAND, OHIO.

CARBURE'IER.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed March 6, 1907. Serial No. 360,895.

'1 '0 all whom it may concern:

Be it known that we, ALEXANDER WINTON and HAROLD B. ANDERSON, citizensof the United States, residing at Cleveland, in the county of Cuyahogaand State of Ohio, have invented certain new and useful Im rovements inCarbureters, of which the fol owing is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to improvements in carburetors, and is designedfor use in connection with explosive engines to furnish a uniformexplosive mixture therefor.

The particular improvement herein referred to involves the methoddisclosed and claimed in our co-pending application Ser. No. 323 ,117 inwhich the slowly moving volumes of air are subjected to surfacecarburetion, and the rapidly moving volumes of air subjected to spraycarburetion.

There are now in general use two forms of mechanisms for throttling orcontrolling the speed and power of an explosive motor, viz t ose inwhich the inlet valves act as a throttle by limiting their openingmovements, and those in which the inlet valves are mechanically orotherwise opened wide, and the throttling effected by a gate or valve inthe passage-way between the carburetor and the inlet valves. 7 It isfound that in the first form of motor controlling means, the air passesthrough the carburetor in pulsating waves even at the lowest velocitieswhich obtain for thelowest operation of the motor.-

In the second form of controlling means with the throttle nearly closedfor low s eeds the velocity of the air throughthe car ureter isconstant, but very low. In the first form the pulsating Waves passthrough the carburetor relatively fast, (especially at low speeds) ascompared with the velocity of the passage of the air through thecarburetor in the second form. For these reasons it is more difficult toobtain a uniform mixture for an engine better meet these different con1t1ons of the different forms of controlling mechanisms.

With this end in view our present invention involves an improvedconstruction whereby. the air which is passing through the carbureter ata constant though low velocity, as well as the pulsating waves of air,are more perfectly and more properly carbureted by surface exposure ofthefluid thereto.

In the accompanying drawings, Figure 1, is a sectional View of ourimproved carbureter taken longitudinally through the airpassage. Fig.2,is a transverse central sectional view thereof.

In carrying out this invention, there is rovided a fluid receivingchamber 1 in which there is a float 2 adapted to maintain a fluid levelwithin the chamber in any desired way, several forms of which are nowwell known to those skilled in this art, and any description thereof isdeemed unnecessary. Passing across the upper portion of this chamber 1is an air passage 3, the lower wall of which at its lowest point 4 isslightly below the fluid level, as shown in Figs. 1 and 2, wherebyprovision is made for maintaining a body of fluid in the air passage tothe surface of which 'is, passes through slower when the engine isrunning slow than it does when the engine-is running fast. When theengine is running at slow speeds a body of fluid is maintained withinthe air passage to which the air is directly subjected, causing surfacecarbure,

tion thereof. When the engine is running at higher speeds a largeramount of fluid or gasolene is' required to carburize the increasedamount of air passing through the air passage, and at such times thegasolene is sucked through the opening 5 into the air passage 3 inlarger quantities than it is supplied by the maintained gravity feed,and the increased volumes of air are subjectedto a fluid spray to meetthe demands thereof for proper carburetion.

In order to cause a proper carburetion of the air which. is passingthrough the carbureter at a low but constant velocity, the air assage 3is flattened at the point where su ace exposure occurs, whichaccomplishes this result principally by deflecting the air down andcausing it to travel close to and directly against the gasolene, for itis found that the air moving at low but constant velooities has atendency to take the shorter course and travel close to and against theupper wall of the air passage. This constructlon also provldes anincreased surface ex osure of the fluid without increasing its vo ume,thus providing a more thorough carburetion of the relatively slowlymoving volumes of air. There are many ways in which this result can beaccomplished in a carbureter involving this method-With the teachings ofthis improvement at hand, and we do not therefore limit OlllSBlVGStOthis specific manner of accomplishing this result,

e broad idea involving the spreading out supply and air entrancethereto, should besu stantially as one, to one and seventysevenone-hundredths (1 to 1 ;,)that is to say, at the point a the airassage-way should be of an area substantia y as one is compared to anarea of one and seventyseven one-hundredths at the entrance I).Substantially this proportionate area is thus far found necessary, notonly to accomplish the combined surface and spray action, but also to atthesame time allow sufficient air to pass to the motor at all of itsvarious speeds.

As here shown, the area at the point a is less than the area at theentrance b, and is intended to represent the areas hereinbefore referredto, but these relative areas have not been accurately worked out in thedrawings.

The construction here shown fort causing the air passing the oil inletof the air passage to travel close to and against the exposed oilsurface when moving at relatively slow velocities, whether thosevelocities be constant or in pulsating waves, is the flattening of theair passage at the points just mentioned, as shown in Fig. 2, thoughthis result ,may be accomplished in other ways without departing fromthe scope of this invention.

Having thus described this-invention,

what is claimed, and desired to be secured by Letters Patent, is

l. A carbureter for the purpose described having an air passage providedwith a fluid inlet, means for maintaining abody of oil within thepassage by gravity flow through the inlet to subject slowly-movingvolumes of air to surface carburetion, the inlet restricted to requiresuction .of the fluid through it to subject rapidly-moving volumes ofair to spray carburetion, said passage-way constructed at the fluidexposed point to deflect the passing volumes of air against and close tothe exposed oil surface.

2. A carbureter for the purpose described having an air passage-wayprovided with a fluid, inlet, means for the maintenance of a body ofexposed fluid in the air passage by gravity flow through said inlet forsurface carburetion of slowly-moving volumes of air, the inlet sorestricted as to require suction of the fluid therethrough for spraycarburetion of ra idly-moving volumes of air, the points of 0i surfaceexposure and air entrance to said passage having relative areassubstantially as one to one and seventy-seven onehundredths.

3. A carbureter for the purpose described having an air passage-Wayprovided with a fluid inlet, meansfor the maintenance of a body of oilin the-air passage by gravity flow through said inlet for surfacecarburetion of slowly-moving volumes-of air, the inlet so restricted asto require suction of the fluid therethrough for spray carburetion ofrapidly-moving volumes of air, said passage way being of greater widththan depth at the point of oil surface exposure.

. 4. A carbureter for the purpose described having an airpassageprovided with a fluid inlet, means for the' maintenance of a body of oiltherein by gravity flow through said inlet for surface carburetion ofslowly-moving volumes of air, the inlet so restricted as to requiresuctionof the fluid'therethrough for fluid spray within the passage forspray carburetion of rapidly-n1ovin air, said passage-way being attenedin a horizontal direction. at the point of fluid surface exposure.

5. A carbureter for the purpose described having an air passage providedwith a fluid inlet, means for the maintenance of a body of oil thereinby gravity flow through said "inlet for surface carburetion ofslowly-hwying volumes of air, the inlet so restricted as to requiresuction therethrough 2201' sp'ray carburetion of ra idly-moving v' ninesof air, said passage ii passage at the point offluid exposure than atthe point of air entrance tl1ereto,, ,s aid smaller area constructed todeflect all of the asking air towards and against the exposed 111 Y 6. Acarbureter for the purpose described aving a smaller area air.

volumes of I inlet, means for the maintenance of a body of oil thereinby gravity flow through said inlet for surface carburetion of slowlymov-'ing volumes of air, the inlet so restricted as to require suctiontherethrough for fluid spray carburetio'n of rapidly-moving vol uInesvof air, said passage having a smaller areaat the fluid exposed pointthan at the point oflair entrance thereto, said smaller area havinggreater width than depth, for the purpose described.

v 7. A carbureter for the purpose described having an air passageprovided with a fluid inlet, means for the maintenance of a body of oiltherein by gravity flow through the inlet for surface carburetion ofslowly-mov ing volumes of air, the inlet so restricted as to requiresuction therethrough for spray carburetion of rapidly-movin volumes ofair, saidlpassage havinga smal er air passage area at t e point of fluidex osure than at the point of air entrance t ereto, the said smaller airpassage area flattened out in a horizontal direction for the purposedescribed.

8, A carbureter for the purpose described having an air passage providedwith a fluid inlet, means for the maintenance of a body of exposed fluidtherein by gravity flow through the inlet for surface carburetion of forspray carburetion-of rapidly-moving volumes'of air, said air passage .atthe point of oil exposure constructed to deflect the air into contactwith" the fluid and having an area substantially as one, andthe'air-en-= trance to the passage having- ,an' area substantially as oneand seventy+seven onehundredths.

9. A carbureter for the having an air passage provided with afluidinlet, means for the maintenance of a body of exposed fluid therein bygravity flow through the inlet for carburetion of slowlymoving volumesof air, and the inlet so re stricted as to require suction therethroughfor spray carburetion of rapidly-moving volumes of air, the passage atthe point of'oil exposure having greater width than depth and an areasubstantially as one compared with an air entrance to the assage havingan area substantially one-and seventy-seven one-lundredths.

In testimony whereof we affix our signatures in presence of twoWitnesses.

ALEXANDER WINTON. HAROLD B. ANDERSON. Witnesses:

I. F. BAUG-HMAN, M. J. WESTROPF.

purpose described

